MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external links, many of which are hosted on disposable domains, suggesting a phishing or malware distribution scheme. The presence of a 'download button' heuristic further supports the intent to trick the user into downloading malicious content. ClamAV detection and ML classification confirm the malicious nature of the file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://oniceh.ru/uplcv?utm_term=android+chrome+browser+cast+to+tv PDF link annotation
- https://dynasty888.com/image/files/20210907_105342.pdfIn PDF document text
- http://huyminhplastic.com/upload/files/17125752454.pdfIn PDF document text
- http://bluebossa.pl/files/file/defiguxezugajemugogikimit.pdfIn PDF document text
- http://ucg-eg.com/userfiles/file/21371544738.pdfIn PDF document text
- https://interior-mark.com/ckfinder/userfiles/files/gugopitiwebivetilakikeji.pdfIn PDF document text
- https://clubberia.com/js/ckfinder/userfiles/files/lativoju.pdfIn PDF document text
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161432c8fe2949---xikixexe.pdfIn PDF document text
- http://barcabianca.eu/upload/file/gevaromizegitiwuvob.pdfIn PDF document text
- http://aj-freight.com/ckfinder/userfiles/files/gefatu.pdfIn PDF document text
- http://jarosi.hu/files/file/5461897128.pdfIn PDF document text
- http://nilesk.com/userfiles/file/pikirimegebagodosa.pdfIn PDF document text
- http://manuale.aziendasulweb.it/userfiles/files/98922711873.pdfIn PDF document text
- http://bdnchem.com/upload/files/12243702994.pdfIn PDF document text
- http://architectureanddesign.it/userfiles/files/85011186098.pdfIn PDF document text
- https://muzeumkonstancina.pl/attachments/file/20429309102.pdfIn PDF document text
- http://vimar.ua/userfiles/files/limomexaxezomiler.pdfIn PDF document text
- https://svarovanijelinek.cz/ckfinder/userfiles/files/35907632420.pdfIn PDF document text
- https://vanchuyenduongsat.vn/upload/files/22453754111.pdfIn PDF document text
- https://jajugroup.com/ckfinder/userfiles/files/votiziwuvejij.pdfIn PDF document text
- http://www.ponderosafestival.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142ecca25a9e---dezasegageguwibo.pdfIn PDF document text
- http://www.bandungmesin.com/file/39971029960.pdfIn PDF document text
- http://buyyoutubecomments.com/ci/userfiles/files/pikudevofi.pdfIn PDF document text
- http://stl-hk.net/userfiles/25403431291.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d7a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7A5 | 19468 bytes |
SHA-256: fe9cd78d8e0fa2cb3afa2c57fc5b05ecf12e4ea789a36b67c50ba0cbfb0b2cba |
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font_01_sfnt_off00010a2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A2A | 10864 bytes |
SHA-256: 55cad412883a2fc596ffe3cd1e426e3833d72f9e48964cecee5cfd9507d19394 |
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font_02_sfnt_off00012328.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12328 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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